Background—The effect of orthostatic stress on dynamic cerebral autoregulation (CA) in
normal subjects and patients with recurrent vasovagal syncope (VVS) is unclear. This study …

A reduced ability to increase cardiac output (CO) during exercise limits blood flow by
vasoconstriction even in active skeletal muscle. Such a flow limitation may also take place in …

Improved outcome from shock depends on early detection and correction of circulatory
abnormalities. Global cardiac output and oxygen delivery must be adequate and distributed …

Background: The reduction of stroke volume (SV) during hemorrhage reflects the degree of
blood loss, but accurate assessment of SV in bleeding patients in the field currently is not …

The present study examined whether dynamic cerebral autoregulation and blood–brain
barrier function would become compromised as a result of exercise‐induced oxidative …

Sedentary aging is often characterized by physical dysfunction and chronic degenerative
diseases. In contrast, masters athletes demonstrate markedly greater physiological function …

Mitigation of spaceflight-related pathologies such as spaceflight-associated neuro-ocular
syndrome (SANS) and the recently discovered risk of venous thrombosis must happen …

A strict adequate perfusion pressure via arterial baroreflex for the delivery of oxygen to the
tissues of the body is well established; however, the importance of baroreflex for cerebral …

Zhang, Rong, Julie H. Zuckerman, James A. Pawelczyk, and Benjamin D. Levine. Effects of
head-down-tilt bed rest on cerebral hemodynamics during orthostatic stress. J. Appl. Physiol …

Higher oscillations of cerebral blood velocity and arterial pressure (AP) induced by
breathing with inspiratory resistance are associated with delayed onset of symptoms and …